Adrian
- County:
- Lenawee County
- County Seat:
- Yes
- Area (mi²):
- 8.007
- State:
- Michigan
Adrian is a city located in Lenawee County, Michigan. Adrian has a 2026 population of 20,259. It is also the county seat of Lenawee County. Adrian is currently declining at a rate of -0.01% annually and its population has decreased by -1.73% since the most recent census, which recorded a population of 20,616 in 2020.